v4.6.1
- Two additional solvers: a parallel and iterative version
- Optimisations for large data sets
- Optimisations of file exchanges for use with ODV
- Highly optimised new version of the grid generator (typical reduction of a factor 10 in CPU time)
- Integration of faster error calculations into the 3D/4D version (using new ispec values)
- Clearer log files for debugging.
Note: with the availability of gfortran, we decided to abandon the support of pure f77 compilations and this release needs Fortran 90 or Fortran 95 and -cpp preprocessing tools).
Example of performance gain using divabigtest (test with 1.5 million data points and a very fine mesh):
| CPU time in seconds in | 4.5.1 | 4.6.1 |
|---|---|---|
| mesh | 27 | 2 |
| analysis | 318 | 159 |
The results presented below show how the computation time evolves:
- for the computation when the number of observations increases.
- for the mesh generation when the correlation length is modified.
